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EP4270422A4 - FERRITE SHEET TAPE, AND ANTENNA DEVICE AND CABLE USING FERRITE SHEET TAPE - Google Patents

FERRITE SHEET TAPE, AND ANTENNA DEVICE AND CABLE USING FERRITE SHEET TAPE Download PDF

Info

Publication number
EP4270422A4
EP4270422A4 EP21914974.7A EP21914974A EP4270422A4 EP 4270422 A4 EP4270422 A4 EP 4270422A4 EP 21914974 A EP21914974 A EP 21914974A EP 4270422 A4 EP4270422 A4 EP 4270422A4
Authority
EP
European Patent Office
Prior art keywords
ferrite sheet
sheet tape
cable
antenna device
tape
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21914974.7A
Other languages
German (de)
French (fr)
Other versions
EP4270422A1 (en
Inventor
Satoshi Ohmae
Tetsuya Kimura
Makoto Sadai
Yoji Okano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toda Kogyo Corp
Original Assignee
Toda Kogyo Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toda Kogyo Corp filed Critical Toda Kogyo Corp
Publication of EP4270422A1 publication Critical patent/EP4270422A1/en
Publication of EP4270422A4 publication Critical patent/EP4270422A4/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H01F1/342Oxides
    • H01F1/344Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00Power cables
    • H01B9/02Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/10Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/34Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36Electric or magnetic shields or screens
    • H01F27/366Electric or magnetic shields or screens made of ferromagnetic material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2225Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/04Screened antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/06Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
    • H01Q7/08Ferrite rod or like elongated core
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073Shielding materials
    • H05K9/0075Magnetic shielding materials
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00Communication cables or conductors
    • H01B11/02Cables with twisted pairs or quads
    • H01B11/06Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • H01B11/10Screens specially adapted for reducing interference from external sources
    • H01B11/1025Screens specially adapted for reducing interference from external sources composed of a helicoidally wound tape-conductor
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14Inductive couplings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/06Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Details Of Aerials (AREA)
EP21914974.7A 2020-12-28 2021-10-20 FERRITE SHEET TAPE, AND ANTENNA DEVICE AND CABLE USING FERRITE SHEET TAPE Pending EP4270422A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020218440 2020-12-28
PCT/JP2021/038743 WO2022145113A1 (en) 2020-12-28 2021-10-20 Ferrite sheet strip, and antenna device and cable using ferrite sheet strip

Publications (2)

Publication Number Publication Date
EP4270422A1 EP4270422A1 (en) 2023-11-01
EP4270422A4 true EP4270422A4 (en) 2024-10-23

Family

ID=82260327

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21914974.7A Pending EP4270422A4 (en) 2020-12-28 2021-10-20 FERRITE SHEET TAPE, AND ANTENNA DEVICE AND CABLE USING FERRITE SHEET TAPE

Country Status (6)

Country Link
US (1) US12505942B2 (en)
EP (1) EP4270422A4 (en)
JP (1) JPWO2022145113A1 (en)
KR (1) KR102858037B1 (en)
CN (1) CN116670933A (en)
WO (1) WO2022145113A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118872006A (en) * 2022-03-09 2024-10-29 户田工业株式会社 Long strip ferrite sheet, cable using the same, and method for manufacturing antenna device using the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9391363B2 (en) * 2012-12-21 2016-07-12 Samsung Electro-Mechanics Co., Ltd. Multilayer ferrite sheet, antenna device using the same, and manufacturing method thereof

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5424703A (en) * 1992-05-08 1995-06-13 The Electrodyne Company, Inc. Magnetization of permanent magnet strip materials
JPH11220310A (en) * 1997-10-15 1999-08-10 Hitachi Metals Ltd Nonreversible circuit element
JP3230492B2 (en) * 1998-08-10 2001-11-19 株式会社村田製作所 Dielectric line non-reciprocal circuit element and wireless device
JP4793521B2 (en) * 2001-02-19 2011-10-12 大日本印刷株式会社 Radio wave absorber
WO2006129704A1 (en) * 2005-06-03 2006-12-07 Murata Manufacturing Co., Ltd. Ferrite sheet and process for producing the same
JP4608474B2 (en) * 2006-11-10 2011-01-12 北川工業株式会社 Composite magnetic member
JP4936391B2 (en) 2007-11-07 2012-05-23 北川工業株式会社 Ceramic sheet
JP4868461B2 (en) 2007-11-12 2012-02-01 北川工業株式会社 Noise absorber
JP5070353B1 (en) * 2011-04-08 2012-11-14 株式会社Maruwa Ferrite composite sheet, method for producing the same, and sintered ferrite piece used for such ferrite composite sheet
US11646152B2 (en) * 2016-11-25 2023-05-09 Auckland Uniservices Limited Current distribution and thermal regulation in inductive power transfer coupling structures
DE102017205003B4 (en) * 2017-03-24 2023-02-02 Siemens Aktiengesellschaft circuit breaker
JP2019114611A (en) 2017-12-21 2019-07-11 Ntn株式会社 Cable noise filter
US20210001733A1 (en) * 2018-02-23 2021-01-07 Industrieanlagen-Betriebsgesellschaft Mbh Device for generating a magnetic field, in particular for an inductive charging system, and primary device of an inductive charging system for dynamically charging vehicles
KR102175378B1 (en) * 2018-03-13 2020-11-06 주식회사 아모센스 Wide area type composite magnetic field Shielding sheet and wireless power transfer module including the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9391363B2 (en) * 2012-12-21 2016-07-12 Samsung Electro-Mechanics Co., Ltd. Multilayer ferrite sheet, antenna device using the same, and manufacturing method thereof

Also Published As

Publication number Publication date
WO2022145113A1 (en) 2022-07-07
EP4270422A1 (en) 2023-11-01
TW202226278A (en) 2022-07-01
US20240055167A1 (en) 2024-02-15
KR102858037B1 (en) 2025-09-09
JPWO2022145113A1 (en) 2022-07-07
US12505942B2 (en) 2025-12-23
CN116670933A (en) 2023-08-29
KR20230125264A (en) 2023-08-29

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Effective date: 20240920

RIC1 Information provided on ipc code assigned before grant

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